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CVE-2023-52672 In the Linux kernel, the following vulnerability has been resolved: pipe: wakeup wr_wait after setting max_usage…
Description
In the Linux kernel, the following vulnerability has been resolved: pipe: wakeup wr_wait after setting max_usage Commit c73be61cede5 ("pipe: Add general notification queue support") a regression was introduced that would lock up resized pipes under certain conditions. See the reproducer in [1]. The commit resizing the pipe ring size was moved to a different function, doing that moved the wakeup for pipe->wr_wait before actually raising pipe->max_usage. If a pipe was full before the resize occured it would result in the wakeup never actually triggering pipe_write. Set @max_usage and @nr_accounted before waking writers if this isn't a watch queue. [Christian Brauner <brauner@kernel.org>: rewrite to account for watch queues]
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Linux 6.8 | premières → < 6.8 | 6.8 |
| Linux 6.7 | premières → < 6.7.3 | 6.7.3 |
| Linux 6.6 | premières → < 6.6.15 | 6.6.15 |
| Linux 6.1 | premières → < 6.1.76 | 6.1.76 |
| Linux 5.15 | premières → < 5.15.149 | 5.15.149 |
| Linux 5.10 | premières → < 5.10.210 | 5.10.210 |
| Linux | 5.8 | Pas de correctif indiqué |
| linux_kernel 6.8 | premières → < 6.8 | 6.8 |
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